<template>
  <view class="cart-container" v-if="cart.length != 0">
    <!-- 收货地址组件 -->
    <my-address></my-address>
    
    <!-- 商品列表的标题区域 -->
    <view class="cart-title">
      <!-- 左侧图标  -->
      <uni-icons type="shop" size="18"></uni-icons>
      <!-- 右侧文本 -->
      <text class="cart-title-text">购物车</text>
    </view>
    
    <!-- 商品列表区域 -->
    <uni-swipe-action>
      <block v-for="(item, index) in cart" v-bind:key="index">
      <uni-swipe-action-item v-bind:right-options="options" v-on:click="swipeActionClickHandler(item)">
          <my-good v-bind:goods="item" v-bind:showRadio="true" v-on:radio-change="radioChangeHandler" v-bind:showNum="true" v-on:num-change="numChangeHandler"></my-good>
      </uni-swipe-action-item>
      </block>
    </uni-swipe-action>
    
    <!-- 结算组件  -->
    <my-settle></my-settle>
  </view>
  
  <!-- 空白图片区域 -->
  <view class="empty-cart" v-else>
    <image src="/static/cart_empty@2x.png" class="empty-img" mode=""></image>
    <text class="tip-text">空空如也~</text>
  </view>
</template>

<script>
  /*import uniSwipeAction from '@/uni_modules/uni-swipe-action/components/uni-swipe-action/uni-swipe-action.vue';
  import uniSwipeActionItem from '@/uni_modules/uni-swipe-action/components/uni-swipe-action-item/uni-swipe-action-item.vue';*/
  import badgeMix from '@/mixins/tabbar-badge.js'
  import { mapState, mapMutations } from 'vuex'
  export default {      
    mixins: [badgeMix],   //挂载
    computed: {
      ...mapState('m_cart', ['cart'])
    },
    data() {
      return {
        options: [{
          text: '删除',
          style: {
            backgroundColor: '#C00000'
          }
        }]
      }
    },
     methods: {
       ...mapMutations('m_cart', ['updateGoodsState', 'updateGoodsCount', 'removeGoodsById']),
       //param是my-good组件中radioChangeHandler的第二个参数商品对象
       radioChangeHandler(param){
         this.updateGoodsState(param)
       },
       numChangeHandler(param){
         this.updateGoodsCount(param)
       },
       swipeActionClickHandler(goods){
         this.removeGoodsById(goods)
       }
     }
  }
</script>

<style lang="scss">
  .cart-container{
    padding-bottom: 50px;
  }
  .cart-title {
    height: 40px;
    display: flex;
    align-items: center;
    padding-left: 5px;
    border-bottom: 1px solid #efefef;
    .cart-title-text {
      font-size: 14px;
      margin-left: 10px;
    }
  }
  
  .empty-cart {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 150px;
    
    .empty-img {
        width: 90px;
        height: 90px;
    }
    .tip-text {
      font-size: 12px;
      color: gray;
      margin-top: 15px;
    }
  }
</style>
